Emmons b



-NITED, STATES PATENT OFFICE.

IMMONS B. GORBY, OF BLOOMFIELD, NEW JERSEY.

VIBRATING PROPELLER.

SPECIFICATION forming part of Letters Ifatent No. 268,627, dated December 5, 1882. Application filed September 4, 1880. (No model.)

of New Jersey, have invented certain new and useful Improvements in Means for Propelling Vessels and Boats; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters of reference marked thereon, which form a part of thisspecification. a

The object of this invention is to propel vessels with a diminished outlay of power, and with a simpler mechanism than has been before capable of accomplishing the same results.

The invention consists in the combination and construction of parts hereinafter described, and then sought to be specifically defined by the claims.

Referring to the accompanying drawings, in which similar letters of reference indicate like parts in each of the several figures, Figure 1 represents a detached elevation of a boat or vessel with my invention attached, and Fig.2 a plan view of the same.

In carrying out my invention I construct the shaft carriers or brackets 0. upon the sides of the vessel, in which brackets are bearings for the side shafts, b, to work in Said side shafts are connected with a transverse shaft, 0, which crosses the vessel, as'indicated, and is connected with and actuated by a shaft, 01, from the engine. Said transverse shaft 0 has upon each outer extremity thereof double cranks, substantially as shown, which actuate the before-mentioned side shafts, b, through the connecting-rods b. Upon the'shafts b are hinged the plates e, so connected with sliding collarsf bybraces g as that the said plates will partially fly open when the shafts move in one direction and close in their return movement, said opening andclosing action being produced by the contact of said plates with the water. Upon the shaft are placed small pintles or lugs, which are so situated as to prevent the plates from opening to too great an extent by said lugs coming in contact with the collar. The braces 9 have pivotal connections with plates and collars, and thus allow of the sliding action of the said collars and the opening and closing action of the plates, as will be readily understood.

The action of the invention is as follows: While one rod is moving from right to left the other moves backwardin reverse order, in which backward movement the flanges catch the wa- .ter and fly open, and thus produce a resistant force which propels the vessel forward. When the shaft moves forward again the water closes the plates, as indicated more clearly in Fig. 1, and thus allows the said plates to glide through the water with little resistance.

Itwill be of course understood that the mechanism will be duplicated upon the other side of the boat, and both parts work in conjunction or cooperate.

I am aware that it is not new broadly to provide a reciprocating shaft with hinged wings or plates adapted to b opened when the shaft is moved in one direction, and closed when moved in the opposite direction, and I lay no claim thereto; but

Having thus described my invention, what I claim, and wish to have secured by Letters Patent, is- I Ina propeller, a shaft supported by and adapted to work longitudinally through guides sliding collar limited in its movement by a pin orstop on the shaft, the blades being dependent on the water and movement of said shaft for operation, as described, and for the purpose set forth.

In testimony that I claim the foregoing I have hereunto set my hand this 9th day of August, 1880.

v EMMONS B. OO RBY.

Witnesses:

OLIVER DRAKE, CHARLES H. PELL. 

